3.3 sec in total
407 ms
2.6 sec
216 ms
Visit dataview.ofsted.gov.uk now to see the best up-to-date Dataview Ofsted content for United Kingdom and also check out these interesting facts you probably never knew about dataview.ofsted.gov.uk
Data View
Visit dataview.ofsted.gov.ukWe analyzed Dataview.ofsted.gov.uk page load time and found that the first response time was 407 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
dataview.ofsted.gov.uk performance score
name
value
score
weighting
Value2.0 s
85/100
10%
Value12.4 s
0/100
25%
Value14.4 s
1/100
10%
Value18,300 ms
0/100
30%
Value0.182
67/100
15%
Value30.2 s
0/100
10%
407 ms
141 ms
12 ms
38 ms
29 ms
Our browser made a total of 45 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Dataview.ofsted.gov.uk, 20% (9 requests) were made to Public.tableau.com and 16% (7 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (781 ms) relates to the external source Public.tableau.com.
Page size can be reduced by 3.2 MB (73%)
4.3 MB
1.2 MB
In fact, the total size of Dataview.ofsted.gov.uk main page is 4.3 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 3.7 MB which makes up the majority of the site volume.
Potential reduce by 43.9 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 43.9 kB or 69% of the original size.
Potential reduce by 0 B
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Dataview Ofsted images are well optimized though.
Potential reduce by 2.7 MB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 2.7 MB or 74% of the original size.
Potential reduce by 435.1 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Dataview.ofsted.gov.uk needs all CSS files to be minified and compressed as it can save up to 435.1 kB or 72% of the original size.
Number of requests can be reduced by 28 (72%)
39
11
The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dataview Ofsted. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
ofsted
407 ms
7549ee6e-3df6-49b9-8c06-298835f90264.css
141 ms
css_jZza2pfZGJc7ZN3mjo8JTYYvKAc4Dd2k9yebN9DwNjw.css
12 ms
api.js
38 ms
js_VK2qUCtZcefZVVxlkLr2oa3ScrfHKhtbBbVvzsKkaTg.js
29 ms
v.gif
370 ms
gtm.js
287 ms
recaptcha__en.js
273 ms
Dataview
235 ms
ofsted
248 ms
public-icons-cb04.woff
78 ms
anchor
47 ms
analytics.js
35 ms
styles__ltr.css
9 ms
s5G5viF55Zd620FDUE2o6cwnsrT1pToaK6kVmkloWvE.js
29 ms
webworker.js
29 ms
logo_48.png
28 ms
collect
47 ms
2UX7WLTfW3W8TclTUvlFyQ.woff
55 ms
RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff
57 ms
collect
54 ms
collect
55 ms
recaptcha__en.js
9 ms
nr-885.min.js
92 ms
tableau-logo-transparent-fff.png
98 ms
elqCfg.min.js
182 ms
Dataview
375 ms
Viewregionalperformanceovertime
781 ms
35f2b5d0eb
108 ms
svrGP
207 ms
svrGP.aspx
46 ms
tableau.css
60 ms
vqlweb.css
73 ms
dojo.xd.js
97 ms
jquery-1.11.2.min.js
107 ms
mscorlib.min.js
107 ms
jsstrings_en.js
122 ms
clientweb.xd.js
126 ms
vqlweb.js
141 ms
1.png
190 ms
30x30REV.gif
50 ms
clientweb_en-us.xd.js
127 ms
collect
4 ms
collect
6 ms
collect
5 ms
dataview.ofsted.gov.uk accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-*] attributes do not match their roles
button, link, and menuitem elements do not have accessible names.
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Buttons do not have an accessible name
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
dataview.ofsted.gov.uk best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
dataview.ofsted.gov.uk SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
N/A
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dataview.ofsted.gov.uk can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Dataview.ofsted.gov.uk main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
dataview.ofsted.gov.uk
Open Graph description is not detected on the main page of Dataview Ofsted. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: